Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,2,1,3,4 for x=0,1,2,3,4.

A196135

Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,2,1,3,4 for x=0,1,2,3,4.

Terms

    a(0) =1a(1) =14a(2) =31a(3) =165a(4) =326a(5) =1350a(6) =3288a(7) =12943a(8) =33772a(9) =113604a(10) =328378a(11) =1119797a(12) =3245707a(13) =10352649a(14) =31244339a(15) =100779085a(16) =304866170a(17) =952470015a(18) =2927610616a(19) =9231448285a(20) =28362649959a(21) =88098662332a(22) =272473939620a(23) =851211806848

External references